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Recent content by zarzisur

  1. Z

    P-Channel driver for high speed

    I have used a P-Mosfet driver for 20khz which is very simple.
  2. Z

    Getting started with Microprocessor programming in C/C++

    There are many family of Microcontroller. Each of them needs some special instructions to do the stuff. C is very good for small system + where time optimization and fast programm is needed. I have worked with two family of microcontroller till now. They are AVR and PIC. For learning to write...
  3. Z

    DQ transformation of Hybrid stepper motor

    Yeah there is some vidio lecture series on D-Q transformation which are actually very good. But it takes a lot of time to grasp PARK/ Clark Transformation. You can check this two vidio lecture series in youtube. https://www.youtube.com/watch?v=AECBgmkWvo0&list=PLbMVogVj5nJQBG9363J1uq5Fnq4m1yGXL...
  4. Z

    PWM generator for stepper motor motor controller

    Why u use built in generator. Try to make your own. I think u are doing things in simulink. In simulink u can generate pwm on your way. Process is: First u take a signal generator. Make its duty cycle 50 percent and period according to your switching frequency.Signal generators on and off value...
  5. Z

    ATmega328p and USB conection to PC

    I wanted to blink a led every 1s connected with PORTB0 pin of Atmega 328p microprocessor. I have used USBASP programmer.The connection USBASP with 328p is like this: MOSI-17 MISO-18 SCK-19 RESET-1 GND-8 VCC-7 I have used a LM7805 to power the microprocessor from 9V battery,i have used two 1uF...
  6. Z

    Buck conver using PMOS gate driving problem

    HI BradtheRad, Thanks!!! When NPN is on doesnt this circuit pulling gate to ground? Rony
  7. Z

    Buck conver using PMOS gate driving problem

    I want to implement this schematics. I am not sure about R3 and R4 though
  8. Z

    Buck conver using PMOS gate driving problem

    I want to build a buck converter with p type mosfet. Specification: input voltage:24v Output voltage:12v I have chosen frequency 20khz,and my inductor value and capacitor value is 1mH and 20uF. Now all seems to be okay.the problem is i cant drive the pmosfet.I wanted to drive Pmosfet with a NPN...

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